Stowage/go
2
0
Fork 0
mirror of https://github.com/golang/go.git synced 2025-12-08 06:10:04 +00:00
Code Issues Projects Releases Packages Wiki Activity

runtime: eliminate gchelper mechanism

Browse source 
Now that we do no mark work during mark termination, we no longer need
the gchelper mechanism.

Updates #26903.
Updates #17503.

Change-Id: Ie94e5c0f918cfa047e88cae1028fece106955c1b
Reviewed-on: https://go-review.googlesource.com/c/134785
Run-TryBot: Austin Clements <austin@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rick Hudson <rlh@golang.org>
This commit is contained in:
Austin Clements 2018-08-26 21:33:26 -04:00
parent 550dfc8ae1
commit 0906d648aa
5 changed files with 9 additions and 157 deletions
Download patch file Download diff file Expand all files Collapse all files

4
src/runtime/stack.go
View file

@ -350,7 +350,7 @@ func stackalloc(n uint32) stack {
}
var x gclinkptr
c := thisg.m.mcache
if stackNoCache != 0 || c == nil || thisg.m.preemptoff != "" || thisg.m.helpgc != 0 {
if stackNoCache != 0 || c == nil || thisg.m.preemptoff != "" {
// c == nil can happen in the guts of exitsyscall or
// procresize. Just get a stack from the global pool.
// Also don't touch stackcache during gc
@ -445,7 +445,7 @@ func stackfree(stk stack) {
}
x := gclinkptr(v)
c := gp.m.mcache
if stackNoCache != 0 || c == nil || gp.m.preemptoff != "" || gp.m.helpgc != 0 {
if stackNoCache != 0 || c == nil || gp.m.preemptoff != "" {
lock(&stackpoolmu)
stackpoolfree(x, order)
unlock(&stackpoolmu)